<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        .box {
            margin: 50px;
        }

        .box .block {
            margin: 30px 0;
        }

        .box .block input {
            height: 40px;
            padding-left: 20px;
            border: 1px solid #ccc;
            border-radius: 5px;
            width: 100%;
            outline: none;
            box-sizing: border-box;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="block"><input type="text" placeholder="手机号/用户名/邮箱"></div>
        <div class="block"><input type="text" placeholder="密码"></div>
        <div class="block"><input type="button" value="登录"></div>
    </div>
</body>

</html>
<script src="./promise.js"></script>
<script>
    var inputs = document.querySelectorAll('.box .block input')
    inputs[2].addEventListener('click', function () {
        if (inputs[0].value && inputs[1].value) {
            if (/^1[3-9]\d{9}$/.test(inputs[0].value) && /^\d{6}$/.test(inputs[1].value)) {
                ajax('get', 'https://yantianfeng.com/api/login', { username: inputs[0].value, password: inputs[1].value }).then((data) => {
                    if (data.status == 200) {
                        alert('登陆成功');
                    } else {
                        alert('登陆失败!');
                    }
                })
            } else {
                alert('请输入正确的手机号/密码')
            }
        } else {
            alert('用户名/密码不能为空')
        }
    })
</script>